Styrene → Lytron 810

Participants

Reaction Steps

A copolymer of 50 mol-% of maleic acid anhydride and 50 mol-% of styrene is prepared by introducing 98 parts by weight of maleic acid anhydride in 400 parts by weight of toluene into a reactor at a temperature of 60° to 70° C. After initiation with 0.7 parts by weight of azoisobutyric acid nitrile, 104 parts by weight of styrene are added within 3 hours at 60° to 70° C. The polymer obtained from the polymerisation precipitates in the reactor and may be filtered off after completed polymerisation and washed. The polymer contains 48.5% by weight of maleic acid anhydride units and has a Staudinger Index in acetone of [μ]=0.22 dl/g.

Provenance & Evidence